Leash Handgrip With Removable Cartridge and Spring Mediator
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Solution Overview
Problem
Existing handgrips for leashes are cumbersome, painful to use due to direct force transmission to the hand and wrist, and are often heavy and bulky, limiting the user's ability to perform other tasks with their other hand.
Innovation Solution
A handgrip with an elongated bent shape featuring recesses at opposite ends with bayonet closures or threaded connectors, allowing easy attachment and removal of functional members such as flashlights, bags, or other tools, providing improved weight distribution and enabling the user to hold the leash and perform additional functions like lighting or carrying items without adding significant weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a retractable leash container is integrated into the handgrip, then the leash can be stored and retracted, but the handgrip becomes heavy and bulky
Solution Approach 1:
The invention separates the leash storage function from the handgrip by using a removable cartridge that can be inserted into or removed from the handgrip. This segmentation allows the handgrip to remain lightweight when the cartridge is removed, while still providing full leash storage capability when needed.
Solution Approach 2:
The handgrip system transitions from a static integrated design to a dynamic configurable design where the cartridge can be inserted or removed based on immediate needs. This dynamic approach allows users to adapt the system weight to the situation - carrying the cartridge when leash storage is needed, leaving it at home when not needed.
2Force
If high forces are transmitted directly to the hand and wrist when holding the leash, then the leash can be controlled effectively, but physical problems occur in the hand and wrist
Solution Approach 1:
The handgrip acts as an intermediary device between the leash and the user's hand. It incorporates a spring mechanism that mediates the force transmission, absorbing shock and reducing the direct impact of high forces on the user's hand and wrist while maintaining effective leash control.
Solution Approach 2:
The spring mechanism in the handgrip provides beforehand cushioning by being pre-loaded to absorb sudden forces. When the leash experiences high forces, the spring compresses to cushion the impact before it reaches the user's hand, preventing physical strain while maintaining control.
3Ease of operation
If the hand is occupied holding the leash, then the leash can be controlled, but no other items can be held in the other hand for further activities
Solution Approach 1:
The handgrip is designed as a universal platform that can accommodate multiple functional attachments beyond just leash storage. Users can attach various functional members such as lights, bells, or storage containers to the handgrip, enabling multiple functions to be performed with one hand while leaving the other hand free for additional tasks.
4Adaptability or versatility
If functional members are permanently integrated into the handgrip, then the device is complete, but it becomes bulky and heavy
Solution Approach 1:
The functional members are segmented into separate removable cartridges rather than being permanently integrated into the handgrip. This allows users to attach only the functional members needed for each specific activity, reducing the overall volume and weight of the carried items while maintaining full functional capabilities when needed.
Solution Approach 2:
The functional members are designed to nest within the handgrip structure when attached. The cartridges fit into the handgrip body, with functional components nested within the cartridge housing, minimizing the external volume increase while providing substantial functional capabilities.
Data Source
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AI summary
The present invention relates to a handgrip (1) for coupling a leash, comprising a body (2) with a connector for coupling said leash. The handgrip (1) is characterized in that said body (2) has an elongated shape comprising a grip part for holding said handgrip (1) with a hand, at least one end (25, 4, 8) of said body (2) having a recess (14, 23) with a first coupling part for cooperation with a functional member part having a second coupling part. The invention further relates to a combination of a handgrip (1) according to the invention and a functional element, said functional element having at a first end (3) a second coupling part for cooperative coupling with said handgrip (1) and at an opposite end (25, 4, 8) a recess (14, 23) with a coupling part substantially similar to said handgrip's (1) first coupling part for coupling another functional element. Also, the invention relates to a functional element for use in a combination according to the invention, said functional element having at a first side a second coupling part for cooperative coupling with said handgrip (1) and at an opposite side a recess (14, 23) with a coupling part substantially similar to said handgrip's (1) first coupling part for coupling another functional element.